[gnome-mines] Don't use HeaderBar.show_fallback_app_menu

[Michael Catanzaro <mcatanzaro src gnome org>]

commit b4d344b73967a2f69220467627fb3c08fdcaa3c7
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Fri Dec 13 18:47:27 2013 -0600

    Don't use HeaderBar.show_fallback_app_menu
    
    It's been removed

 src/gnome-mines.vala |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/src/gnome-mines.vala b/src/gnome-mines.vala
index 29e6296..a4b6808 100644
--- a/src/gnome-mines.vala
+++ b/src/gnome-mines.vala
@@ -134,7 +134,6 @@ public class Mines : Gtk.Application
 
         var headerbar = new Gtk.HeaderBar ();
         headerbar.show_close_button = true;
-        headerbar.show_fallback_app_menu = true;
         headerbar.set_title (_("Mines"));
         headerbar.show ();
         window.set_titlebar (headerbar);